Pop-up mechanism

Details Pop-up mechanism Pop-up mechanism

1996-05-14

1998-03-03

Meyers, Steven N.

Closure fasteners

Adjustable backset

292 95, 248118, E05C 1900

Patent

active

057227039

ABSTRACT:
A pop-up mechanism is formed of a main frame, supporting poles rotatably coupled to the main frame, an elevating member rotatably attached to the supporting poles, an urging device for urging the supporting poles to rotate in a stand-up direction, and a locking device for locking the elevating member in a pop-up state and in a folded state. The locking device includes a locking piece slidably attached to the elevating member and having a lock releasing projection and a locking hole; a locking member rotatably attached to one of the supporting poles and having a locking pawl; and a locking projection projecting from the main frame. The locking projection is engaged with a locking hole of the locking piece to lock in the folded state, and the locking pawl of the locking member is engaged with a locking dent formed in the elevating member to lock in the pop-up state. When the locking piece is pushed, the locking conditions in the folded state and the pop-up state are released.

REFERENCES:
patent: 554488 (1896-02-01), Hofmeister
patent: 4674790 (1987-06-01), Johnson
patent: 4828323 (1989-05-01), Brodersen
patent: 4886317 (1989-12-01), Konzmann
patent: 5076645 (1991-12-01), Yokota

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